Question: What's the tributary of the lake of Ciudad del Este?
Paraphrase: What's the tributary of the lake of Ciudad del Este?
SPARQL (Wikidata): SELECT ?answer WHERE { wd:Q192235 wdt:P206 ?X . ?X wdt:P974 ?answer}
Answer: Paraguay River, Iguazu River, Grande River, Paranapanema River, Paranaíba River, Tietê River, Salado River, Corriente River, Carcarañá River, Ivaí River, Piquiri River, Pardo River, Gualeguay River, Guayquiraró River, Negro River, Acaray River, Arrecifes River, Peixe River, Feliciano River, Nogoyá River, Monday River, Riacho Arazá, Santa Lucía River, Ludueña Stream, Maracaí River, Palometa River, Quitéria River, Saladillo Stream, San Javier River, Santo Anastácio River, Sucuriú River, São Francisco River, São José dos Dourados River, Aguapeí River, Ivinhema River, São José dos Dourados, Jordão River, Verde River, Iguatemi River